Hot-air furnace



March 18, 1930. H. TlELKi-:MEYER HOT AIR FURNAGE Filed July 11, 1929 Patented Mar. 18, 193@ l HOT-AIR oF sT. LoUIs, MISSOURI FURNACE I Application mea :muy 11, 1929. serial No. 377,381.

This invention relates to furnaces and has special reference to furnaces of a type using solid fuels.

An object of the invention is tol provide an improved Vfurnace of the warm air circuation type having ak fire pot mounted for rocking movements within an enclosing drum for case provided with one or more feed openings, and means for turning the. fire pot to l and from position to receive fuel orl other materials or substances from said openings.

A Another object of the invention is to provide a furnace of the type and character mentioned provided with arocling fire pot supported within an enclosure and having a grate at' one end and an .opening at the opposite end, in combinationy with means forming a fuel inlet passage and means for turning the fire pot to one .position in which it will receive vfuel,and for Vturning Athe .fire

pot to another position in' whichpthe products of combustion-are discharged vertically from said opening. Y Y a v Another object ofthe invention is to pro- 5. vide afurnace havinga rocking lire pot provided with ,anopen'ing in its upperA side for discharging they products of combustion, 1n vcombination, with meansforming an enclosure for said fire pot and havingafpassage sotherethrough for conducting ashes, etc., to-

" wardvthefire pot, and means for rocking the fire pot to a position in which ashes from said passage will bre-,discharged through said opening into the lirepot to bank the fire and Y for turningthefire pot to another position vin, which the products of combustion will be discharged through said opening to an appropriete outlet or flue. f l v Another ob `ect of the invention 1s to provide an improved vfurnace having aroclring A, vfire pot.- provided with an .opening inione side in combination with means forminga fuel-inlet Apassage and means forming a passage for ashes or slack or the like, and means for rocking the fire pot optionally to positions to receive through said opening fuel from said first passage,or ashes, etc., from saidy second' passage, as desired.

Other objects will appear from Athe following descriptiomreference being made to the accompanying drawings in which- Y Fig. 1 is a vertical front to rear sectional view of my improved furnace, showing the.,i fire pot in an upright position. s Fig. 2 is a vertical sectional view of the furnace showing the iire pot turned to a horizontal position.

Fig. 3 is an enlarged udetailed View ofthe latch devicecapable ofsatisfactory use ino the invention. fr

v In the embodiment of the invention shown, the furnace comprises an outer shell orcase 1 having an air inlet passage 2 opening into the lower end thereof and having a number e5 of air circulation passages 3 openingfrom its upper end. The pipes 3 leadto thefrooms into which the warm air, lis to bevdischarged.

Within the lower end of Vthe Vshell ory case,Av

ly anash receptacle is formed by a series of 7o approximately vertical walls l seated upon a bottom wall 5, vand a top wall -6 having therethrough an opening L7.' This'a'sh receptacle, opens through the front Offthefshell...

.or case 1 and is provided witha hinged` 75,

door 8, which may be opened to permit access tothe in sideof the ash ,receptacle or itope'r-v mit air to pass to the fire-pot. y

An. enclosure andV support forjthe fire potgv is mounted'and supporteduponthe ash rep-s0 s, y

ceptacle andV is approximatelyspherical in form. Y As shown, 'this enclosure and support forthe lire pot comprises a lower Isectiofn 9 :seated and supported on the wall 6 and having interlocking engagementlO therewith. Thel lower side of the` section 9 has an openingtherethrough to permit the ashesand solid products of combustion to dropV into the ashv receptacle'and to permit air to pass upwardly into Contact with the bu'rningkfuel. .The in- 90 termediate section, llf of the enclosure and support for the lire pot is seated upon the upperY edge of the section9 andsecuredthereto by fasteners 12. The intermediate section. l1 has through one side thereof apassagey 13 surrounded by a vwall 14;V projecting outwardly through an opening in thefshell or Y case 1 and forming ja.fuelfinletfpassage through which fuel is delivered into` the fur.- nace. The outer end of ythis 'inlet passage .loo

.. outlet 21'. l 1

` l flargfiessgr A1@ngaudma,1V slots 29 wiseifadng f y Pil-w11@ OpeningQeOPPOSi-e the feel Supply Pe$age13,i0i' Opposite thepessgelmr epl A"3241A latch deteiitz of :familiar lcons i l [with the leverB/lffor engagenient'i I, is opened and closed by a hingeddoor V14??.

The upperk section 15 of thefenclosure' andy support vforthe vfire pot is seated upon ythe' 'Y upper 'edgeof the intermediate fsetion' '11 andr y, 1 has athrough itsnpper fend an opening 16 j f forming a discharge passage for the srnolel 1.-' and fumes, Thesectionpll has through one n vpot maybe left in thatl'positionorgrnay then `Y bemturned lto the upright position shown'.

Y When vfuel is deliveredintorthe repot in) the `manner describedr'the fresh fuel is, for fthe most part, covered' bythe burningffuel `andilive coals when the'fre pot is turned to ,i

its vupright position. That this `Will oCcuriS apparentfrorn aninspectionof the drawings( Moreover, these movements;oftheiirepot are Y side 'thereof an opening 17 Y surrounded by the Wall 18 projecting upwardly atv an inf. 'ashes orA slack yorfthe lkeiintO 'hejfl' pot. f The-Wall 18 projects .through the shell or vf; case labove the passage 14: and islcontrolled p by thelphinged door 195Which 'be opened 15or closed as desired. l 1 v Aw'drum 2O is seated andsupportedfupon Y ythe section` 15 andlisdesignedarid"arranged e to receive theVV smoke and fumes kdisCharged; l thereto Ythrough the opening V16 audio.' oon` x Lduct the smoke and fumes to` the Y discharge .Thev r@ riotf o Y approximately oval in side'elevation and,`l as showin is made of-Atwo, duplicate vsections Q2 "l Vide' ranV ,enclosure havingy vat itsfupper end an VopeningQe and at 'its lowerfendan opening-y .p osite theopeningvlijas' desired@ 'Y 1 I Y ahmed latomeer@pee/'the eline and forming Var passage'y for conducting f 'iriiproxied' -iiur-Iiace is Y s .Y

and arrangement oftheiev l, 'Within :quivalentilmits Without,.f-.id..ePfait@are` secured `together byf"i'astener's 23"soas^to profrom the natnr'egaiid principle ofgtheiinven;

I l i 115.73159 Pai-,pentiszf trlalgangeon which Vthe grams 27 is supported; f number of PrOje'ctiQnsZS arm Y c al' lugzpso. AThe lugsiiorafe in 1zialaline ent andare'p-fseatedrfin bearings 31` opening 24 is at the upper Vend. Y

llVhen` it isdesired to bank the vfurnace to Y I.

retard combustion the'lever 34 may be oper? atedrto turn the fire pot toV position to receive ashesor slackfrom the passagenl. The lire l receptacle.

and satisfactory nalnner.

tion.k Ido not restrict V4myselfiinessentially w ing an opening atits lower end vfor ,theadl`J inissi'on of 'air and the,discharge[of solid "Leit-oi ,products offcginbuston'andha'Vingan'Opening at `'its l'upper endv fforgjjthe v discharge of a grate forming al cfue .suppox and' also' having a',fuelfmletfopeni Side, fa" fire potsupported forrjturning :AIno'v-fe-fj Y A l `H5 and loweri" tends; aigrateacros's Ithe openingjjatfthe lower end of saidV vfire pot fori"supportir'ig.'fuelvr inV 'Said fr'e'pet, andllieans fifoffturningfSaid 'l i fire. pot-from Apositionin@which Said openings,

insaid pot'are inIl-inefwith*said openings inthe upper: andloW'er ends'of 'said1enclosure Y .to positionfinrwhieh the'jope'ningfat theupper f inlet openings.A A i f y,

' 3. A furnacejconiprisinganencles rehaving openings at its tippen and v.-lowe also havingvfuel inletjopeningatpne 1de Y end of said enclosure, a fire pot supported for turning movements on a horizontal axis .in said enclosure and having an opeiiingat its upper end and a grate at its lower end for supporting fuel in said fire pot, and means for turning said fire pot to position in Which said opening at the upper end of said lire pot is in line with the opening at the upper end of said enclosure or said fuel inlet opening or With said last named opening in said enclosure, as desired.

4. A furnace comprising an enclosure having openings at its Lipper and lower ends and also having a fuel inlet opening at one side, a fire pot supported for turning movements on ahorizontal axis in said enclosure and hav- .ing an opening at its upper end, a grate supfire pot from position in which said opening at the upper end of said fire pot is in line With the opening at the upper end of said enclosure or in line With said fuel inlet opening, as dey sired.

5. A furnace comprising an enclosure having openings atits'upper and lower ends and also having a fuel inlet opening at one side, a fire pot supported for turning movements on a horizontal axis in said enclosure and having an opening at its upper end, a grate supported by said fire pot for supporting fuel in said fire pot, means for turning said ire pot from position in Which said opening at the upper end of said fire pot is in line With the opening atv the upper end of said enclosure, or in line With said fuel inlet opening,vas desired, and a device in connection with said means for preventing said fire pot from turning accidentally from either of said positions.

6. A furnace comprising an enclosure having an opening in its upper end and having a fuel inlet opening at one side, a fire pot sup- Y ported for turning movements on a horizon- 1 tal axis in said enclosure and having an inlet opening at its upper end, means for admitting air into said enclosure and into said fire pot, and means for turning said fire pot to j place said-opening at the upper end of said' fire pot in line With lsaid opening at the upper end of said enclosurel or in line With said fuel inlet opening, as desired.

7. A furnace comprising an enclosure-having an opening in its upper end and having a fuel inlet opening at one side and having a bankingmaterial opening above said fuel inf 1 ylet opening, a fire pot supported for turning movements on a horizontal axis in said enclosure andV having an opening at its upper en d, means for supporting fuel in said fire pot, means for admitting air into said enclosure and to said fire pot, and means for turning said nre pot to positionin which said opening at the .upper end of said fire pot is in line With either of said openings inv said v enclosure. l f

8. A furnace comprising an enclosure having an opening in its upper end and having a fuel inlet opening at one side and having a' banking material opening above said fuel `said fire pot to position in Which saidopening at the upper end of said fire potis in line With either of said openings insaid enclosure, and a device in connectionWith said f means for preventing said fire pot from turnso ing accidentally from either of said positions.

HENRY TIELKEMEY'ER.

i iio iisY p 13oy f Y 

